See every angle,
before you buy.

Independent buying research built from published specifications, not opinions. Every figure traces to a manufacturer document or a standard - and when a manufacturer publishes nothing, PickPrism says so instead of guessing.

  • 105 products researched from published specifications
  • 354 manufacturer documents and standards cited
  • 54 specification figures a manufacturer does not publish

Researched in full

16 guides · All guides

  • Pets Buyer guide

    What Size Dog Crate Your Dog Needs, by Weight and Measurement

    Which crate size a dog's weight actually maps to, why two brands' charts disagree at the same weight, and why the divider decides whether you buy one crate or several.

    Updated · 7 models compared · 44 sources · 6 specs not published

  1. 02

    Countertop vs Portable Dishwasher: Which Fits a Small Kitchen

    Kitchen · Comparison · 5 models · 24 sources

  2. 03

    Home Theater Projector Lumens and Throw Ratio, by Room Size

    Tech · Buyer guide · 5 models · 34 sources

  3. 04

    Smart Lock Keypad vs Fingerprint vs App Entry for a Rental Property

    Smart Home · Buyer guide · 8 models · 40 sources

  4. 05

    Cordless Drill or Impact Driver: Which to Buy First

    Tools & DIY · Comparison · 8 models · 28 sources

  5. 06

    Countertop Dishwashers Compared: Fill Method, Fit and Cycle Time

    Kitchen · Comparison · 8 models · 23 sources

  6. 07

    OBD2 Code Reader or Bidirectional Scan Tool: What DIY Repair Needs

    Auto · Comparison · 7 models · 19 sources

  7. 08

    Espresso Machine Pressure and Boiler Type, Explained

    Kitchen · Explainer · 7 models · 26 sources

  8. 09

    Leaf Blower CFM, MPH and Newtons: Gas and Cordless for Large Yards

    Outdoor · Buyer guide · 5 models · 14 sources

  9. 10

    Countertop vs Built-In Ice Maker: What a Home Bar Needs

    Kitchen · Comparison · 6 models · 18 sources

  10. 11

    Robot Vacuums for Mixed Carpet and Hardwood Floors

    Cleaning · Buyer guide · 8 models · 24 sources

  11. 12

    Neutral Wire or Not: Choosing a Smart Switch or Dimmer

    Smart Home · Comparison · 8 models · 15 sources

  12. 13

    Portable, Standby or Battery: Home Backup Power Compared

    Tools & DIY · Comparison · 6 models · 22 sources

  13. 14

    Single or Dual Channel Dash Cam: What the Specs Decide

    Auto · Buyer guide · 7 models · 25 sources

  14. 15

    How Many Mesh Wi-Fi Nodes Your Square Footage Actually Needs

    Smart Home · Buyer guide · 6 models · 19 sources

  15. 16

    Dehumidifier Sizing: Matching Pint Capacity to Your Basement

    Home · Buyer guide · 6 models · 16 sources

New guides publish when the research is finished, not on a schedule. RSS

How we know, and how we don't

When a manufacturer does not publish a number, we print Not published and leave it there. We do not fill the gap with an estimate, a review quote, or a guess.

We do not physically test products, and we never pretend otherwise. What we publish is research and analysis, kept separate from anything we could not verify. The full method, including its limits

Found a figure we got wrong? Tell us. Corrections are published and dated, and they take priority over everything else we do.

  • Trade-offs stated. Every pick names who should skip it, in the same block as the buy link.
  • Weighting shown. Each guide publishes which specifications it weighted and by how much, so you can disagree with it.